Envelop.



K. KOLEK.

ENVELOP. ,AIPMUATION'FILBD APB.. 6, 1911.

Patented July 13, '1911.

Ei fr gu. I 79 Afz WITNESSES:

MUMIIA PLANOUIAPN C0 WASHINGTON' D C.

KAROL KOLEK, 0F BUFFALO, NEW YORK.

ENVELOP.

Specification of Letters Patent.

Application filed April 5, 1911.

Patented July 18, 1911. Serial No. 619,044.

To all whom it may concern.'

Be it known that I, Kanon KOLEK, a subject of the Czar of Russia,residing at Buffalo, inthe county of Erie and State of New York, haveinvented certain new and useful Im*u provements in Envelops, of whichthe following is a specilication, reference being had therein to theaccompanying drawing.

This invention relates to safety envelops, and the objects of myinvention are, to provide an envelop that can be advantageously used forthe transmission of valuable matter by inail and express, and to providean envelop that cannot be surreptitiously opened without detection.

l attain the above objects by a simple construction that is durable andinexpensive to manufacture.

The invention will be hereinafter specifically described and thenclaimed, and reference will now be had to the drawing, wherein likenumerals of reference designate corresponding parts throughout theseveral views, in which Figure 1 is a plan of the envelop open. Fig. 2is a plan of the envelop closed. Fig. 3 is a longitudinal sectional viewof the envelop, and Fig. 4 is a cross sectional view of the same.

An envelop in accordance with this invention is made of paper, paperoidor other durable material, and comprises a rectangular body 1 having endflaps 2 and 3, adapted to be folded upon the dash lines 4 onto thebody 1. The end flap 2 has a central vertical slit or slot 5 and alongitudinal slit or slot 6, the slot 6 being located adjacent to thelower edge of the flap 2. The inner side of the flap 2, at a point toone side of the upper end of the slot 5, is gummed or provided withadhesive material 7.

The end flap 3 is cut away, as at 8, and slitted, as at 9, to form an Lshaped tongue 10, and adjacent to the lower edge of the flap 3 there isa longitudinal slit or slot 11. The flap 3 is gummed or provided withadhesive material 12.

The upper edge of the body 1 has a top flap 13 adapted to be folded uponthe dash line 14 onto the end flaps 2 and 3. The top Hap 13 has theouter edge thereof provided with an angularly disposed tongue 14, andthis tongue and the edges of the flap 13 are gummed or provided withadhesive material 15. The flap 13 has a central longitudinal slit orslot 16 and the inner side of the flap,

at one end of slot 16, is gummed or provided with adhesive material 17.

The lower edge of the body 1 has a bottom flap 18, adapted to be foldedupon the dash line 19 onto the end flaps 2 and 3, and

the edge of the top flap 13. The lower edge of the bottom flap 18 has anL shaped tongue 20, and this tongue and the edges of the flap 18 aregummled or provided with adhesive material 21.

The manner of folding and closing the flaps of the envelop is asfollowsz-After the Hap 2 has been folded upon the body 1, the adhesivematerial 12 of the flap 3 is moistened, also the outer side of thetongue 10. The flap 3 is then folded upon the body to overlap the flap2, and when suicient pressure is brought to bear upon the flap 3 itadheres to the outer side of the flap 2, with the slots 6 and 11registering. The moistened tongue 10 is then inserted in the verticalslot 5 and caused to adhere to the adhesive material 7. The adhesivematerial 15 `of the flap 13 is then moistened, together with the tongue14. The flap is folded and caused to adhere to the outer sides of theflaps 2 and 3. The moistened tongue 14 is inserted through theregistering slots 6 and 11 and caused to adhere to the adhesive material22, carried by the flap 2 adjacent to the slot 6. Before further closingthe envelop matter can be placed therein, and then the bottom flap 18 ismoistened and folded to adhere to the flaps 2, 3 and 13. The tongue 20is inserted in the slot 16 and caused to adhere to the adhesive material17. l

What I claim is 2- An envelop comprising a body, end flaps carriedthereby and adapted tobe folded upon said body with one of said flapsover lapping the other, said end flaps having longitudinal slots formedtherein in proX- imityto one longitudinal edge thereof and adapted toregister when the end flaps are folded upon said body, one of said endflaps having a vertical slot formed therein and the flap adjacent tosaid vertical slot gummed, the overlapping end flap being cut away andgummed, an L shaped tongue projecting from one side of the center of theoverlapping end flap and adapted to enter the vertical slot of the otherend Hap and adhere to the gummed portion thereof, a top flap carried bysaid body and having a longitudinal slot formed therein with said hereto said top Hap, said bottom Hup being gummed to adhere to said end aps,Substantiully as described.

In testimony whereof I aiX my signature in the presence of twoWitnesses.

KAROL KOLEK.

top flap gummed adjacent to said slot, an inclined angle-shaped tongueprojecting centrally from said top flap and adapted to enter theregistering slots of said end flaps, said top flap and the tonguethereof being gunnned to adhere to said end flaps, a bottom flap carriedby said body, and an L shaped tongue projecting from one side ofitnessesz the center of said bottom flap and adapted S. C. FRANK, toenter the slot of said top flap and to ad- A. L. RUYAK.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

